Resources

Magic: The Gathering Comprehensive Rules Changes

Core Set - Ninth Edition to Ravnica: City of Guilds (Single Change View)

General changes

Old rule (Core Set - Ninth Edition) New rule (Ravnica: City of Guilds)

609.5.

A player can't attack opponents who aren't seated next to him or her.

609.5.

Team games use the normal rules for winning and losing the game (see rule 102).